Melting compound



" mm. sTATas ATE T orrlcs SOUBEN IEOL'EIAN, OI PHILADELPHIA, PENNSYLVANIA, ASSIGNOB OI TWENTY-m m GENT 1'0 ELIG- Y. YARDUMIAN, OF' PHILADELPHIA, PENNSYLYANIL I MELTING 'courom.

Io Drawing,

. v This invention'relates to a compound for melting ice and snow and also for preventing I 1.1 which are hard to remove.

.Still another object of the invention is to' provide a compound which willhave admixed therewith an abrasive substance which will prevent slipping ofpedestrians during the melting operation. 4 Salt'is commonly used for melting ice on pavements, etc., but there are many objections to its use, among these being that it only melts a certain portion of the ice when it loses its efiectiveness, and durin very cold weather, this melted ice will reeeze; and when salt is used it leaves white deposits or stains upon pavements and the like, which are very hard to remove, and which present so a very unsightly appearance.

In the present invention certain in edients have been mixed with sodium chlor de so as to overcome the objections above stated.

- It has been found that if sodium chloride is mixed with ammonium chloride and Epsom, a salt, that ice will-be disintegrated and melted, even in very low temperatures of surrounding atmosphere, and it has been found that by combmm with this mixture 'a cer- 40' tain amount of silica sand and water it can be kept in granular form while the sand will prevent slipping on an icy surface during the melting and disintegration of the ice.

The com ound is fiepared in the followmg um oride and ammomum Application filed July 7, 1930. SeIla1 N0.'-!88,845.

melt ice chloride are mixed with E som salt. To this v ,mixture silica sand is ad ed with just ,suflicient water to cause a com ination of the s dium chloride, ammonium chloride and psom salt, while the silica sand will prevent the first named ingredients from conealing and will keep the same in granular orm.

. The Epsom salt will form abonding mate-' rial between the sodium chloride and ammonium chloride and experiment has proven that'with these three ingredients in combination, a very desirable melting compound 1s produced, which is effective even when the surrounding atmosphere'is at very low temperature.

'It has been found that a suitable com-' pound is obtained by mixing the ingredients in the following proportions:

Per cent 05 Sodium chloride (common lake salt) 16 Ammonium chloride 32 Magnesuim sulphate (Epsom salt) 16 Silica sa 32 Water 4 7 I By increasing the water slightly, the com-' pound ma be practically used for coating the wings an fuselage of airplanes, ship ropes and hausers and the like, so as to prevent the formation of ice or snow thereon. v

If a small amount of this compound is scattered over a pavement during a snow storm, it will prevent the snow from forming thereon by melting the flakes as rapidly as they come in contact therewith. p

.Many other uses for the compound will be found, and its proportions may be varied without departing from the invention herein set forth and hereafter claimed. a a5 Iclaim:-'v 1. An i'ce melting compound consisting of sodium chloride, ammonium. chloride I and magnesium. sulphate.

2. An ice melting compound consisting of I sodium chloride, ammonium chloride, mag nesium sulphate, silica sand, and water.

3, An ice melting compound consistmg of the following ingredients in approximately the following proportions: sod um chloride,

25%; ammonium chloride, 50%; and magnesium sulphate, 25%.

4. An ice melting compound consisting of the following ingredients in approximately the following proportions: sodium chloride, 16%; ammonium chloride, 32%; ma esium sulphate, 16%; silica sand, 32 o; and water, 4%. v

In testimony whereof I have signed my 15 name to this specification.-

SOUREN KEOLEIAN. 

